Adapter



FIG. 1 is a top perspective view of an adapter showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a side elevation view thereof;

FIG. 6 is an opposing side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the adapter that form no part of the claimed design. 

CLAIM The ornamental design for an adapter, as shown and described. 